[Media] Plumb a feature parameter for the background video keyframe distance.

media/blink/webmediaplayer_params.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
 #include "media/base/media_observer.h"
 #include "media/blink/media_blink_export.h"
 #include "media/filters/context_3d.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 class TaskRunner;
 }
 
 namespace blink {
@@ skipping 26 matching lines @@
       const DeferLoadCB& defer_load_cb,
       const scoped_refptr<SwitchableAudioRendererSink>& audio_renderer_sink,
       const scoped_refptr<MediaLog>& media_log,
       const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
       const scoped_refptr<base::TaskRunner>& worker_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
       const Context3DCB& context_3d,
       const AdjustAllocatedMemoryCB& adjust_allocated_memory_cb,
       blink::WebContentDecryptionModule* initial_cdm,
       SurfaceManager* surface_manager,
-      base::WeakPtr<MediaObserver> media_observer);
+      base::WeakPtr<MediaObserver> media_observer,
+      base::TimeDelta max_keyframe_distance_to_disable_background_video);
 
   ~WebMediaPlayerParams();
 
   DeferLoadCB defer_load_cb() const { return defer_load_cb_; }
 
   const scoped_refptr<SwitchableAudioRendererSink>& audio_renderer_sink()
       const {
     return audio_renderer_sink_;
   }
 
@@ skipping 23 matching lines @@
   AdjustAllocatedMemoryCB adjust_allocated_memory_cb() const {
     return adjust_allocated_memory_cb_;
   }
 
   SurfaceManager* surface_manager() const { return surface_manager_; }
 
   base::WeakPtr<MediaObserver> media_observer() const {
     return media_observer_;
   }
 
+  base::TimeDelta max_keyframe_distance_to_disable_background_video() const {
+    return max_keyframe_distance_to_disable_background_video_;
+  }
+
  private:
   DeferLoadCB defer_load_cb_;
   scoped_refptr<SwitchableAudioRendererSink> audio_renderer_sink_;
   scoped_refptr<MediaLog> media_log_;
   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
   scoped_refptr<base::TaskRunner> worker_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
   Context3DCB context_3d_cb_;
   AdjustAllocatedMemoryCB adjust_allocated_memory_cb_;
 
   blink::WebContentDecryptionModule* initial_cdm_;
   SurfaceManager* surface_manager_;
   base::WeakPtr<MediaObserver> media_observer_;
+  base::TimeDelta max_keyframe_distance_to_disable_background_video_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebMediaPlayerParams);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_